[infinispan-issues] [JBoss JIRA] (ISPN-4746) NPE when preloading cache with DeltaAware values

[Gustavo Fernandes (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-4746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gustavo Fernandes updated ISPN-4746:
------------------------------------
              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/2892


> NPE when preloading cache with DeltaAware values
> ------------------------------------------------
>
>                 Key: ISPN-4746
>                 URL: https://issues.jboss.org/browse/ISPN-4746
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 7.0.0.Beta2
>            Reporter: Gustavo Fernandes
>            Assignee: Gustavo Fernandes
>
> {code:java}
> public class DeltaAwarePreloadTest extends MultipleCacheManagersTest {
>    private static final int CLUSTER_SIZE = 1;
>    @Override
>    protected void createCacheManagers() throws Throwable {
>       ConfigurationBuilder c = getDefaultClusteredCacheConfig(CacheMode.DIST_SYNC, false);
>       c.persistence().addStore(new DummyInMemoryStoreConfigurationBuilder(c.persistence()).storeName(getClass().getSimpleName())).preload(true);
>       createCluster(c, CLUSTER_SIZE);
>       waitForClusterToForm();
>    }
>    @Test
>    public void testPreloadOnStart() throws PersistenceException {
>       Cache<Object, Object> cache = caches().get(0);
>       cache.put(1, new TestDeltaAware());
>       cache.stop();
>       cache.start();
>    }
> }
> {code}
> During preload, the {{NonTxDistributionInterceptor}} decides that is requires values from previous owners and tries to check if the local node is the primary owner. At this point, the WriteCH is null since no topology was ever updated. Here's the stacktrace:
> {code}
> Caused by: org.infinispan.persistence.spi.PersistenceException: Unable to preload!
> 	at org.infinispan.persistence.manager.PersistenceManagerImpl.preloadKey(PersistenceManagerImpl.java:620)
> 	at org.infinispan.persistence.manager.PersistenceManagerImpl.access$000(PersistenceManagerImpl.java:70)
> 	at org.infinispan.persistence.manager.PersistenceManagerImpl$1.processEntry(PersistenceManagerImpl.java:228)
> 	at org.infinispan.persistence.dummy.DummyInMemoryStore.process(DummyInMemoryStore.java:165)
> 	at org.infinispan.persistence.manager.PersistenceManagerImpl.preload(PersistenceManagerImpl.java:220)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.infinispan.commons.util.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:168)
> 	... 37 more
> Caused by: java.lang.NullPointerException
> 	at org.infinispan.distribution.impl.DistributionManagerImpl.getWriteConsistentHash(DistributionManagerImpl.java:115)
> 	at org.infinispan.distribution.impl.DistributionManagerImpl.getConsistentHash(DistributionManagerImpl.java:105)
> 	at org.infinispan.distribution.impl.DistributionManagerImpl.getPrimaryLocation(DistributionManagerImpl.java:95)
> 	at org.infinispan.interceptors.locking.ClusteringDependentLogic$DistributionLogic.localNodeIsPrimaryOwner(ClusteringDependentLogic.java:395)
> 	at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.remoteGetBeforeWrite(NonTxDistributionInterceptor.java:131)
> 	at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.handleNonTxWriteCommand(BaseDistributionInterceptor.java:195)
> 	at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.visitPutKeyValueCommand(NonTxDistributionInterceptor.java:72)
> 	at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)
> 	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:98)
> 	at org.infinispan.interceptors.DistCacheWriterInterceptor.visitPutKeyValueCommand(DistCacheWriterInterceptor.java:72)
> 	at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)
> 	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:98)
> 	at org.infinispan.interceptors.CacheLoaderInterceptor.visitPutKeyValueCommand(CacheLoaderInterceptor.java:113)
> 	at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)
> 	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:98)
> 	at org.infinispan.interceptors.EntryWrappingInterceptor.invokeNextAndApplyChanges(EntryWrappingInterceptor.java:376)
> 	at org.infinispan.interceptors.EntryWrappingInterceptor.setSkipRemoteGetsAndInvokeNextForDataCommand(EntryWrappingInterceptor.java:464)
> {code}



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